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10-11-2018, 11:41 AM | #1 |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,340
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Good fi cleaner
I’ve got the 06 Gmc with 5.3 engine with 185,000 miles on it. Runs good but i’m getting a rich idle code on right side. I’ve replaced the 02 sensor but still get the code. It goes and comes. Fuel pump was replaced 10,000 miles ago. I run a bottle of fi system cleaner through it and the code doesnt reappear for a month or so. I guess maybe it has a leaky injector or more. Who offers injector testing and cleaning services? Or is chevron with techron the best cleaner in a bottle you can use?
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
10-11-2018, 01:48 PM | #2 |
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Join Date: Oct 2011
Location: Tucson, AZ
Posts: 639
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Re: Good fi cleaner
I have always run lucas injector cleaner and have not had any issues. But I try to put as little as possible in my 08 due to no fuel filter. May try pulling the plugs and making sure they are all good, the plugs last a long time if correct, but when they are done they are really done. Coils are also recommended to be replaced every 100K miles but I told the dealer last time I was in that they could run longer. At 140 now. You have me thinking maybe I should look into this.
LS injectors are also fairly cheap to replace, but it may be cheaper to clean. I have never had mine cleaned. |
10-11-2018, 03:17 PM | #3 |
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Join Date: May 2012
Location: horseheads,ny rust belt
Posts: 2,794
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Re: Good fi cleaner
have you checked for intake gasket/o-ring leaks ? the ls based engines are known for this a lot .
and DO NOT keep tossing parts at it with out a proper scanner read and diagnose of why its throwing a code . or you will be chasing your tail round and round . lots of times its another part farther up thats not fully bad to set its own code yet that makes something down the line sense it and throw its code . the price of new injectors for gas engines i would prob not bother with testing or reman of them . just get new and install if you find that one is leaking fuel past .
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77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
10-11-2018, 04:32 PM | #4 |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,340
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Re: Good fi cleaner
[QUOTE I run a bottle of fi system cleaner through it and the code doesnt reappear for a month or so. [/QUOTE]
That doesn’t exactly sound like a vacuum leak to me. Thanks though.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
10-11-2018, 09:56 PM | #5 |
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Join Date: Dec 1999
Location: Mid NE USA
Posts: 2,212
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Re: Good fi cleaner
I have used BG 44k with good results. It pricey. This link is for reference only. Most auto supply stores carry it.
Ron https://www.amazon.com/BG-Products-F...Y8NCGA36B4A3AP
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Member #111 68 C-10 Daily Driver 70 4x4 Project 76 Jeep CJ-5 Help Support the Board: http://67-72chevytrucks.com/vboard/payments.php He who knows nothing is closer to the truth than he whose mind is filled with falsehoods and errors. Thomas Jefferson |
10-11-2018, 10:39 PM | #6 |
laying low
Join Date: Mar 2001
Location: Searcy, Ark. USA
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Re: Good fi cleaner
And at about $140 each for new injectors they aren't cheap.
https://www.oreillyauto.com/shop/b/f...=Fuel+Injector I believe I'll be using some more fuel system cleaners to try to straighten this thing out. Thanks fellas.
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Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
10-12-2018, 10:00 AM | #7 | |
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Join Date: May 2012
Location: horseheads,ny rust belt
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Re: Good fi cleaner
Quote:
rockauto starting at 15.00-78.00 each . cheepy to acdelco units . and there always posting 5-10% off promo codes on chat forums . heck that covers shipping most times . ya got to shop around anymore buddy .
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77-k30lb BIG truck build . 87-k30lb budget beater build . 85-k30lb the plow machine build . 85-c10sb summer fun toy . ----------------------------- HOLLEY SNIPER efi = worst case of p.i.t.a i ever had . EDELBROCK pro flo 4 = best deal going so far . love my setup works great. |
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10-12-2018, 10:27 AM | #8 | |
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Join Date: Oct 2011
Location: Tucson, AZ
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Re: Good fi cleaner
Quote:
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10-12-2018, 02:37 PM | #9 |
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Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
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Re: Good fi cleaner
First, understand what causes "rich" codes -
https://youtu.be/5WnM_NsOtd8 https://youtu.be/cARQ0jZZ4Qc Then start looking at solutions.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find 87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4 |
10-13-2018, 09:34 AM | #10 |
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Join Date: Feb 2014
Location: Sunnyvale, CA
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Re: Good fi cleaner
Dont think Fuel injector/System cleaner is gonna fix your isssue but I have been using Chevron Techron for nearly 30years in the service of vehicles. use the concentrate in the black bottle not the cheap silver bottle.
have seen Chevron fuel fix a number of strange running issues and strictly use Chevron fuel in all my vehicles and recommend to customers. No I dont own any Chevron stock... gesss I should
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10-16-2018, 12:19 PM | #11 | |
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Join Date: Dec 2011
Location: Moraga, CA
Posts: 812
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Re: Good fi cleaner
Quote:
On top of that, the polyether part burns very cleanly so there is no residue left behind. In fact it removes deposits left behind by other lesser detergents. There is also lots of "no harm" testing done with it on taxi fleets and so on. It cleans deposits and doesn't hurt other things. So it's strong but gentle. Techron is the one that is consistently strong. Other brands pop up now and then, some are good, while others have nothing except a carrier oil and a little solvent. Some even change, depending on who is in charge of marketing a given year. Many car companies also endorse Techron in one way or another. I used to keep a list and still probably have it somewhere. Wow, I sound like a marketing guy! :-) Try a bottle or two or three and run a couple of tanks of gas. If you use three then probably change your oil after that because trace amounts of any detergent wind up in the crank case and you don't want to disturb the additive package in the oil. One is no problem at all, but with three you might want to change it. If that doesn't take care of your injectors then look into one of the other products that uses a super nasty solvent and isolates the injector rail. You don't want that super nasty solvent circulating through your whole fuel system. Harbor Freight used to have a DIY apparatus to hold and pressurize the solvents and deliver them to your isolated fuel rail, but not sure if they do now. I see Walmart online carries the OTC tool $144 with free shipping: https://www.walmart.com/ip/OTC-Tools...BoC_uIQAvD_BwE But I'd try the Techron first. Good luck and please keep us posted.
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(Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1 http://67-72chevytrucks.com/vboard/s...d.php?t=567340 |
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10-16-2018, 01:36 PM | #12 | |
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Join Date: Jun 2016
Location: Phoenix, AZ
Posts: 574
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Re: Good fi cleaner
Quote:
Question - does the 87 octane Chevron gasoline have less Techron additive than the 89 or 91 octane? In other words, do I need to run an occasional tank of 91 or am I good just running 87 all the time? There is a Chevron close to my house and probably 9 tanks out of 10 are purchased there.
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87 R30 CC Dually, TBI 454, NV4500, zero rust barn find 87 Jeep Grand Wagoneer, 6.5 turbodiesel, 700R4 |
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10-16-2018, 06:37 PM | #13 | |
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Join Date: Dec 2011
Location: Moraga, CA
Posts: 812
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Re: Good fi cleaner
Quote:
But if you need 91 then definitely use it. I'm a little frugal so I usually use 87, but if I'm going up into the mountains and carrying a heavy load or pulling a trailer I don't hesitate to fill with 91 before I head up. Of course if you're going down hill from the mountains then 87 is fine. Having said that, I'm experimenting with my Jeep to see if it makes a difference in MPG. Over the past 6 weeks it's gotten 21-22 on 87 on my commute. I'm trying 91 this week and may continue of the data set looks promising. They publicly say that if you use our gas you shouldn't need a bottle of Concentrate Plus, but I occasionally put a bottle in mine once or twice a year to be safe. I remember hearing about the "Plus." That's when they added some special stuff to deal with the corrosion of the silver fuel tank sending units. I knew the guy that did that work.
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(Very) Slow-Going Build Thread: Stock 1970 Short Step with Stock 1970 LT-1 http://67-72chevytrucks.com/vboard/s...d.php?t=567340 |
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10-13-2018, 02:43 PM | #14 |
Senior Member
Join Date: Jan 2001
Location: Orem, Utah
Posts: 7,934
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Re: Good fi cleaner
The Techron is the best I've ever used.
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